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One-dimensional ZnSe@N-doped carbon nanofibers with simple electrospinning route for superior Na/K-ion storage

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Chinese Chemical Letters 2023年第2期34卷 515-518页

作者： Di Huang Daxiong Wu Jixing Zhu jinyu xie Jipeng Wu Jiaojiao Liang Hunan University of Technology Zhuzhou 412008China School of Physics and Electronics Hunan UniversityChangsha 410082China

One-dimensional carbon nanofibers are widely applied as anode material in the energy storage field due to its unique structure and high conductivity. In this work, one-dimensional ZnSe@N-doped carbon nanofibers(ZnSe@NC NFs) are successfully synthesized by electrospinning and annealed without extra troublesome conditions. ZnSe nanocrystals are enfolded in the N-doped carbon nanofibers, which can act as a protective layer to avoid the volume expansion of active material and promote ion transport during the cycling process. More importantly, the as-synthesized ZnSe@NC NFs are served as the anode material and display the admirable storage properties for Na/K-ion batteries. The one-dimensional Zn Se@NC NFs material shows the high capacity of 237 mAh/g for Na-ion batteries at a current density of 1 A/g for 2000cycles. Meanwhile, it also delivers a high discharge capacity of 337 mAh/g for K-ion batteries at 0.2 A/g for 300 cycles. Additionally, it is confirmed that the pseudocapacitive contribution of the nano-structure material is up to 54.5% at a scan rate of 0.6 m V/s through the cyclic voltammetry(CV) measurement in K-ion batteries.

关键词： ZnSe Nanofibers Electrospinning Na-ion batteries K-ion batteries Pseudocapacitive

Generating function approach to reliability analysis of structural systems

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Science China(Technological Sciences) 2009年第10期52卷 2849-2858页

作者： ZHOU jinyu1 & xie LiYang2 1 Jiangsu Teacher’s University of Technology, Changzhou 213001, China 2 Northeastern University, Shenyang 110004, China Jiangsu Teacher’s University of Technology Changzhou China Northeastern University Shenyang China

The generating function approach is an important tool for performance assessment in multi-state systems. Aiming at strength reliability analysis of structural systems, generating function approach is introduced and developed. Static reliability models of statically determinate, indeterminate systems and fatigue reliability models are built by constructing special generating functions, which are used to describe probability distributions of strength (resistance), stress (load) and fatigue life, by defining composite operators of generating functions and performance structure functions thereof. When composition operators are executed, computational costs can be reduced by a big margin by means of collecting like terms. The results of theoretical analysis and numerical simulation show that the generating function approach can be widely used for probability modeling of large complex systems with hierarchical structures due to the unified form, compact expression, computer program realizability and high universality. Because the new method considers twin loads giving rise to component failure dependency, it can provide a theoretical reference and act as a powerful tool for static, dynamic reliability analysis in civil engineering structures and mechanical equipment systems with multi-mode damage coupling.

关键词： structure reliability generating function static strength failure fatigue failure failure dependence

3 - 47 Anthocyanin and Variegated Mutant Wandering Jew （Tradescantia fluminensis Induced by Carbon Ions Radiation in ）

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IMP & HIRFL Annual Report 2010年第1期 142-143页

作者： He jinyu Li Wenjian xie Hongmei

3 - 45 Antioxidative Roles of Anthocyanins in Mutant of Wandering Jew （ Tradescantia fluminensis ） Induced by Carbon Ions Radiation

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IMP & HIRFL Annual Report 2010年第1期 140-141页

作者： He jinyu Li Wenjian xie Hongmei

3 - 46 Seasonal Stability of Anthocyanins in Mutant of Wandering Jew （ Tradescantia fluminensis ） Induced by Carbon Ions Radiation

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IMP & HIRFL Annual Report 2010年第1期 141-142页

作者： He jinyu Li Wenjian xie Hongmei

Comparative Studies on the Planned Rural-Urban Migrants and Spontaneous Rural-Urban Migrants in China-- Different Status of the "Floating Population" and "Settling Population" in the Study of China's Rural-Urban Migrants Approached from the Fourth Nation

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China City Planning Review 1992年第4期9卷 25-40页

作者： xie jinyu Yu Jing Institute of Population and Development.Census Office of Tianjin.

Rural-urban migrants can be classified into two categories: plannedrural-urban migrants and spontaneous rural-urban migrants, According to the statistics ofthe fourth national census, the author has made a comparative study on the mechanism,accounts, desicion-making process and the level of adaptability and naturalization aftermigration of the rural-urban migrants of these two

关键词：招工三书目的